glupteba | d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d

General

Target

d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Size

4.2MB
MD5

ee291bc39e7ac5cc07bb0bb775865ff8
SHA1

4555bb489802462c01249c1c40874fc3dc564132
SHA256

d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d
SHA512

52687ac31e2bcbee56866694447b9df23106023797e44190667a41381ff5a7b02e72c2da506dd41ccbfd9aeb136218a22ae06e5d57611b1dafaec3661f61526d
SSDEEP

98304:wolgjhUfGhXaVNhvyKT9Ot2himH2rzcg5YwLW2j6H5/mGk:c6LVTtww07wY

Score

10^/10

glupteba discovery dropper evasion loader persistence

Malware Config

Signatures

Glupteba
Glupteba is a modular loader written in Golang with various components.
loader dropper glupteba

Suspicious use of NtCreateUserProcessOtherParentProcess 4 IoCs

Processes:

svchost.exe

description	pid	process	target process
PID 4948 created 1948	4948	svchost.exe	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
PID 4948 created 648	4948	svchost.exe	csrss.exe
PID 4948 created 648	4948	svchost.exe	csrss.exe
PID 4948 created 648	4948	svchost.exe	csrss.exe

Executes dropped EXE 2 IoCs

Processes:

csrss.exeinjector.exe

pid process

648 csrss.exe
1356 injector.exe
Modifies Windows Firewall 1 TTPs 1 IoCs
evasion

Modify Existing Service
T1031

Processes:

netsh.exe

pid process

5024 netsh.exe

pid	process
648	csrss.exe
1356	injector.exe

pid	process
5024	netsh.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

csrss.exed77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	csrss.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\csrss = "\"C:\\Windows\\rss\\csrss.exe\""	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Windows directory 2 IoCs

Processes:

d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe

description	ioc	process
File opened for modification	C:\Windows\rss	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
File created	C:\Windows\rss\csrss.exe	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe

Creates scheduled task(s) 1 TTPs 2 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exeschtasks.exe

pid process

1444 schtasks.exe
564 schtasks.exe

pid	process
1444	schtasks.exe
564	schtasks.exe

Modifies data under HKEY_USERS 64 IoCs

Processes:

d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-231 = "Hawaiian Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1472 = "Magadan Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2511 = "Lord Howe Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2571 = "Turks and Caicos Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-141 = "Canada Central Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-622 = "Korea Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-334 = "Jordan Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-82 = "Atlantic Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-222 = "Alaskan Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-402 = "Arabic Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2841 = "Saratov Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-591 = "Malay Peninsula Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-682 = "E. Australia Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-364 = "Middle East Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-232 = "Hawaiian Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-211 = "Pacific Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2142 = "Transbaikal Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-291 = "Central European Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2431 = "Cuba Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2411 = "Marquesas Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-384 = "Namibia Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2322 = "Sakhalin Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-132 = "US Eastern Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-931 = "Coordinated Universal Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1971 = "Belarus Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2341 = "Haiti Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1931 = "Russia TZ 11 Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2751 = "Tomsk Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-661 = "Cen. Australia Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-261 = "GMT Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-361 = "GTB Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-741 = "New Zealand Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1932 = "Russia TZ 11 Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-461 = "Afghanistan Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2612 = "Bougainville Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1911 = "Russia TZ 10 Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3142 = "South Sudan Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-441 = "Arabian Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2631 = "Norfolk Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-601 = "Taipei Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2591 = "Tocantins Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2062 = "North Korea Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2942 = "Sao Tome Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-662 = "Cen. Australia Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-412 = "E. Africa Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-362 = "GTB Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-1872 = "Russia TZ 7 Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-12 = "Azores Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-111 = "Eastern Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-731 = "Fiji Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-372 = "Jerusalem Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-91 = "Pacific SA Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-602 = "Taipei Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-281 = "Central Europe Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2372 = "Easter Island Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-251 = "Dateline Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2061 = "North Korea Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-672 = "AUS Eastern Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-722 = "Central Pacific Standard Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-3051 = "Qyzylorda Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-381 = "South Africa Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-2001 = "Cabo Verde Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-341 = "Egypt Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Classes\Local Settings\MuiCache\1e\52C64B7E\C:\Windows\system32\,@tzres.dll,-621 = "Korea Daylight Time"	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exed77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exeinjector.execsrss.exe

pid	process
1948	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
1948	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
5028	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
5028	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
5028	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
5028	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
5028	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
5028	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
5028	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
5028	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
5028	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
5028	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
648	csrss.exe
648	csrss.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
648	csrss.exe
648	csrss.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe
1356	injector.exe

Suspicious use of AdjustPrivilegeToken 17 IoCs

Processes:

d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exesvchost.execsrss.exe

description	pid	process
Token: SeDebugPrivilege	1948	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Token: SeImpersonatePrivilege	1948	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
Token: SeTcbPrivilege	4948	svchost.exe
Token: SeTcbPrivilege	4948	svchost.exe
Token: SeBackupPrivilege	4948	svchost.exe
Token: SeRestorePrivilege	4948	svchost.exe
Token: SeBackupPrivilege	4948	svchost.exe
Token: SeRestorePrivilege	4948	svchost.exe
Token: SeBackupPrivilege	4948	svchost.exe
Token: SeRestorePrivilege	4948	svchost.exe
Token: SeBackupPrivilege	4948	svchost.exe
Token: SeRestorePrivilege	4948	svchost.exe
Token: SeSystemEnvironmentPrivilege	648	csrss.exe
Token: SeBackupPrivilege	4948	svchost.exe
Token: SeRestorePrivilege	4948	svchost.exe
Token: SeBackupPrivilege	4948	svchost.exe
Token: SeRestorePrivilege	4948	svchost.exe

Suspicious use of WriteProcessMemory 18 IoCs

Processes:

svchost.exed77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.execmd.execsrss.exe

description	pid	process	target process
PID 4948 wrote to memory of 5028	4948	svchost.exe	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
PID 4948 wrote to memory of 5028	4948	svchost.exe	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
PID 4948 wrote to memory of 5028	4948	svchost.exe	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
PID 5028 wrote to memory of 4996	5028	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe	cmd.exe
PID 5028 wrote to memory of 4996	5028	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe	cmd.exe
PID 4996 wrote to memory of 5024	4996	cmd.exe	netsh.exe
PID 4996 wrote to memory of 5024	4996	cmd.exe	netsh.exe
PID 5028 wrote to memory of 648	5028	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe	csrss.exe
PID 5028 wrote to memory of 648	5028	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe	csrss.exe
PID 5028 wrote to memory of 648	5028	d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe	csrss.exe
PID 4948 wrote to memory of 1444	4948	svchost.exe	schtasks.exe
PID 4948 wrote to memory of 1444	4948	svchost.exe	schtasks.exe
PID 4948 wrote to memory of 4504	4948	svchost.exe	schtasks.exe
PID 4948 wrote to memory of 4504	4948	svchost.exe	schtasks.exe
PID 648 wrote to memory of 1356	648	csrss.exe	injector.exe
PID 648 wrote to memory of 1356	648	csrss.exe	injector.exe
PID 4948 wrote to memory of 564	4948	svchost.exe	schtasks.exe
PID 4948 wrote to memory of 564	4948	svchost.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
"C:\Users\Admin\AppData\Local\Temp\d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1948

C:\Users\Admin\AppData\Local\Temp\d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe
"C:\Users\Admin\AppData\Local\Temp\d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d.exe"
2⤵
- Adds Run key to start application
- Drops file in Windows directory
- Modifies data under HKEY_USERS
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5028

C:\Windows\system32\cmd.exe
C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
3⤵
- Suspicious use of WriteProcessMemory
PID:4996

C:\Windows\system32\netsh.exe
netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
4⤵
- Modifies Windows Firewall
PID:5024

C:\Windows\rss\csrss.exe
C:\Windows\rss\csrss.exe
3⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:648

C:\Windows\SYSTEM32\schtasks.exe
schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
4⤵
- Creates scheduled task(s)
PID:1444

C:\Windows\SYSTEM32\schtasks.exe
schtasks /delete /tn ScheduledUpdate /f
4⤵
PID:4504

C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
4⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:1356

C:\Windows\SYSTEM32\schtasks.exe
schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
4⤵
- Creates scheduled task(s)
PID:564

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s seclogon
1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4948

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

1

T1060

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Filesize
281KB

MD5
d98e33b66343e7c96158444127a117f6

SHA1
bb716c5509a2bf345c6c1152f6e3e1452d39d50d

SHA256
5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

SHA512
705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

Download Submit
C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
Filesize
281KB

MD5
d98e33b66343e7c96158444127a117f6

SHA1
bb716c5509a2bf345c6c1152f6e3e1452d39d50d

SHA256
5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

SHA512
705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

Download Submit
C:\Windows\rss\csrss.exe
Filesize
4.2MB

MD5
ee291bc39e7ac5cc07bb0bb775865ff8

SHA1
4555bb489802462c01249c1c40874fc3dc564132

SHA256
d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d

SHA512
52687ac31e2bcbee56866694447b9df23106023797e44190667a41381ff5a7b02e72c2da506dd41ccbfd9aeb136218a22ae06e5d57611b1dafaec3661f61526d

Download Submit
C:\Windows\rss\csrss.exe
Filesize
4.2MB

MD5
ee291bc39e7ac5cc07bb0bb775865ff8

SHA1
4555bb489802462c01249c1c40874fc3dc564132

SHA256
d77b1e5c51fc11484a7b9269a81645578be28671e7df7fa58b4c850f9853700d

SHA512
52687ac31e2bcbee56866694447b9df23106023797e44190667a41381ff5a7b02e72c2da506dd41ccbfd9aeb136218a22ae06e5d57611b1dafaec3661f61526d

Download Submit
memory/564-152-0x0000000000000000-mapping.dmp

Download
memory/648-147-0x0000000002E00000-0x00000000031E9000-memory.dmp

Filesize
3.9MB

Download
memory/648-153-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/648-141-0x0000000000000000-mapping.dmp

Download
memory/648-148-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/1356-149-0x0000000000000000-mapping.dmp

Download
memory/1444-145-0x0000000000000000-mapping.dmp

Download
memory/1948-132-0x0000000002AB5000-0x0000000002E9E000-memory.dmp

Filesize
3.9MB

Download
memory/1948-133-0x0000000002EA0000-0x0000000003717000-memory.dmp

Filesize
8.5MB

Download
memory/1948-134-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/1948-136-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/4504-146-0x0000000000000000-mapping.dmp

Download
memory/4996-137-0x0000000000000000-mapping.dmp

Download
memory/5024-138-0x0000000000000000-mapping.dmp

Download
memory/5028-135-0x0000000000000000-mapping.dmp

Download
memory/5028-144-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/5028-140-0x0000000000400000-0x0000000000C91000-memory.dmp

Filesize
8.6MB

Download
memory/5028-139-0x0000000002A9A000-0x0000000002E83000-memory.dmp

Filesize
3.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads